on of salubrity, no ordure and town refuse can
be permitted to remain beneath or near habitations.

"That by no means can remedial operations be so conveniently,
economically, inoffensively, and quickly effected as by the removal of all
such refuse dissolved or suspended in water.

"That it has been subsequently proved by the operation of draining houses
with tubular drains, in upwards of 19,000 cases, and by the trial of more
than 200 miles of pipe sewers, that the practice of constructing large
brick or stone sewers for general town drainage, which detain matters
passing into them in suspension in water, which accumulate deposit, and
which are made large enough for men to enter them, and remove the deposit
by hand labor, without reference to the area to be drained, has been in
ignorance, neglect or perversion of the above recited principles.

"That while sewers so constructed are productive of great injury to the
public health, by the diffusion into houses and streets of the noxious
products of the decomposing matters contained in them, they are wasteful
from the increased expense of their construction and repair, and from the
cost of ineffectual efforts to keep them free from deposit.

"That the house-drains, made as they have heretofore been, of absorbent
brick or stone, besides detaining substances in suspension, accumulating
foul deposit, and being so permeable as to permit the escape of the liquid
and gaseous matters, are also false in principle and wasteful in the
expense of construction, cleansing and repair.

"That it results from the experience developed in these inquiries, that
improved tubular house-drains and sewers of the proper sizes,
inclinations, and material, detain and accumulate no deposit, emit no
offensive smells, and require no additional supplies of water to keep them
clear.

"That the offensive smells proceeding from any works intended for house or
town drainage, indicate the fact of the detention and decomposition of
ordure, and afford decisive evidence of mal-construction or of ignorant or
defective arrangement.

"That the method of removing refuse in suspension in water by properly
combined works, is much better than that of collecting it in pits or
cess-pools near or underneath houses, emptying it by hand labor, and
removing it by carts.

"That it is important for the sake of economy, as well as for the health
of the population, that the practice of the removal of refuse in
suspens